Base for cloth-cutting machines.



J. B. GURY.

BASE FOR CLOTH CUTTING MACHINES.

APPLIOATIOH FILED DEG. 30, 1907.

Patented Oct. 20, 1908.-

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J, B. GURY. BASE FOB CLOTH GUTTING MACHINES.

APPLIOATIOH FILED DEC. 30, 1907.

Patented Oct. 20,1908.

2 SHEETS$HEET 2.

JOHN B. GURY, OF ST; LOUIS, MISSOURI.

BASE FOB CLOTH-CUTTING MACHINES.

Specification of Letters Patent.

Application filed December 30, 1907.

Patented Oct. 20, 1908.

Serial No. 408,560.

To all whom it may concern:

Be it known that I, JOHN B. GURY, a citizen of the United States, and a resident of the city of St. Louis and State of Missouri, have invented a certain new and useful Improvement in Bases for Cloth-Cutting Machines, of Which the following is a specification.

This invention relates to cloth-cutting machines, and it has for its principal objects to minimize vibration, to prevent unnecessary frictional contact of the cloth-lifting footplate, to provide a resilient integral clothifting foot- 1plate, to eliminate separate springs and oosely connected or separable arts, and to attain certain other advantages ereinafter more fully appearing. In machines of this character it is customary to provide a supporting foot-plate in connection with a cloth-lifting device. Usually, the foot-plate is provided with antifriction rollers and has the cloth-lifting device resiliently attached thereto. In some cases the clothlifting devices comprise pivoted wings, and in others a loose surrounding framelike member independently movable with respect to the foot-plate. In many of these devices which have parts loosely connected and independently movable, separate springs are employed to hold the clotl1lifting devices in contact with the work table. Some of the devices herein referred to, and especially the frame-like lifting member, unnecessarily bear all around upon the work table, Whereas it is desirable and only necessary to exert a spring pressure upon the forward portion thereof. Furthermore, those devices comprise a multiplicity of unnecessary dparts.

My invention overcomes the disa vantages herein set forth, and it consists in the parts and in the arrangements and combinations of arts hereinafter described and claimed.

n the accompanying drawings, which form part of this specification and wherein like symbols refer to like parts wherever they occur, Figure 1 is a side view partly in section, of a cloth-cutting machine embodying my invention; Fig. 2 is a cross-section of the foot-plate, taken on the line 2-2 of Fig. 3; Fig. 3 is a top plan of the footlate with the supporting standard remove Fig. 4 is a longitudinal section on the line 44 of Fig. 3 and, Fig. 5 is an inverted plan view of the foot-plate.

The machine illustrated in the drawings comprises a base or foot-plate hereinafter more fully described. Mounted on the footplate is an upright standard 1. This standard has a frame 2 secured to the top thereof. On this frame 2 is mounted a motor casing 3 in which is preferably located an electric motor of any desirable type. The motor shaft 4 has a crank-arm or disk 5 secured on its end. Pivotally attached to the crankarm is a connecting link or pitman 6 which in turn is pivotally attached to a rock-arm 7. This rock-arm is secured tightly upon a shaft 8 which has a second rock-arm 9, secured tightly thereon.

Pivotally attached to the free end of the rock-arm 9 is a reci rocatory cutting blade 10. This cutting b ade is arranged to slide in a groove provided therefor in the standard 1. To keep the blade from being thrown out of the groove in the standard when the rock-arm 9 is rapidly oscillated during the operation of the machine, a sprin 11 is attached at one end to the blade be ow the pivotal oint thereof, and its opposite end is attached to a stud 12 on the rock-arm 9, as shown in dotted lines in Fig. 1. If desired, the weight of the oscillatory and reciprocatory parts may be counterbalanced by a spring 13 which may be connected at one end to the stud 12 and atits oppositeend to an eye or other attachment therefor on the frame 2.

A resser-foot 14 is adjustably mounted on the frame 2. The resser-foot is arranged to be placed in cooperative relation to the cutting blade 10 and adapted to be adjusted for piles of cloth of different height. It is held in its adjusted positions by a set-screw 15. A hook 16 is secured on the motorcasing and a handle 17 is attached to the frame 2, whereby the machine may be conveniently manipulated.

While themachine shown comprises a reciprocatory cutting blade, it is to be understood that a machine having a rotary cutting blade may be as well applied to the footplate which will now be more fully set forth. This foot-plate comprises an intermediate carrier portion 18 and outer cloth-lifting portions 19 and 20. The edge of the forward cloth-lifting portion 20 is curved, and the upper faces of all of said cloth-lifting portions are rounded or inclined toward their edges. Preferably, the foot-plate and clothlifting portions comprise an integral casting. The casting is slitted lengthwise, near and parallel to each side edge, and these slits 21 the foot plate.

are cross-connected at their forward ends by a slit 22. Thereby, the foot-plate proper 18 constitutes a tongue portion which is integrally and resiliently attached to the rear portion of the surrounding cloth-lifting frame thus formed, as at 23.

The foot-plate or tongue portion is preferably thickened and stiffened by suitably ribbing the same on the bottom as more clearly shown at 24. in Figs. 2 and 5. Antifriction rollers 25 are provided for the foot-plate. Preferably, these rollers are mounted on spindles 26 and are arranged loosely in rectangular openings 27 provided therefor in The spindles 26 are loosely fitted into notches or grooves 28 provided therefor in the bottom ribs 24.- and in lugs 29 located for the purpose at the corners of the foot-plate 18. The spindles 26 are held in place by retaining clips or pieces 30 which are secured to the bottom of the foot-plate by screws 31.

To limit the upward and downward movement of the foot-plate and cloth lifting portions with respect to each other, when the machine is not in operative position upon a work-table or other fiat surface, it is desirable to provide suitable stops. On the bot-- tom of the tongue portion, at the forward edge thereof, is secured an outwardly projecting piece 32 which is arranged tocontact with a boss 33 on the underside of'the clothlifting portion 20. This limits the independent downward movement of the cloth-lifting portion and the upward movement of the tongue portion. Each of the side cloth-lifting portions 19 is provided with inwardly projecting ieces 34 which are arranged to contact with bosses 35 on the tongue portion 18 to limit the independent downward move ment of the tongue portion and the upward movement of the cloth-lifting portions. Normally, these stops are properly spaced to allow of the independent movement of the tongue and cloth-lifting portions within cer tain bounds. To prevent endwise movement of the spindles 26, pins 36 are provided on the foot-plate adjacent to the ends thereof.

In manipulating the machine it is necessary that the front edges of the cloth-lifting frame be kept in close contact with the surface of the work table so as to always easily ride under the lowermost layer of a pile of cloth. It is not necessary nor desirable, however, that the entire edge of the frame should bear upon the table, as such extended bearing would cause an unnecessary amount of friction and wear. Furthermore, in such a case, the cloth-lifting portion would not always accommodate itself to any unevenness of the surface of the table.

By the present arrangement, the footplate or tongue 18 is made to assume a position approximately flush with the upper face of the cloth lifting portion as shown in Figs. 2-

to 5, inclusive, when it is free of the weight of the other parts of the machine. hen the machine is in operative position, the weight thereof upon the foot-plate causes the front end of the same to bear downwardly until the rollers contact with the work table. The rear rollers are arranged. so that the rear portions of the cloth-lifting frame are always clear of the work table, whereas, thefront rollers only bear thereupon when the footplate is weighted down. The spring of the metal is sufficient to always keep the front portion of the cloth-lifting frame in contact with the work table, and permits the same to move sufficiently independent of the footplate to accommodate the machine to any unevenness of the surface of the table. By the integral construction shown, all looselyconnected parts and separate springs are eliminated, and rattling and vibration are thereby minimized or avoided.

Instead of making the cloth-lifting footplate of one piece, the tongue may be made separate from the cloth-lifting frame and connected thereto at the rear by a resilient metal strip, if desired. It is noted that however the parts of the base are formed, the cloth-lifting portion is connected only to the rear part of the carrier portion and that the connection between them is resilient.

Obviously, the device admits of considerable other modifications without departing from the principle of the invention, and, therefore, I do not wish to be limited to the exact construction and arrangement shown.

That I claim as my invention and desire to secure by Letters Patent is:

1. A cloth-cutting machine comprising a foot-plate having an independently-movable cloth-lifting portion which is free from the front part of the body of said foot plate but whose rear end is resiliently mounted on said foot plate, and a cutter and actuating mechanism therefor carried by said foot-plate.

2. A cloth-cutting machine comprising a 110 foot-plate having an independently-movable cloth-lifting portion which is free from the front part of the body of said foot plate but whose rear end is resiliently mounted on said foot plate, a cutter and actuating mechanism 115 therefor carried by said foot-plate, and antifriction devices on said foot-plate arranged to relieve the same from the work-table.

3. A cloth-cutting machine comprising a foot-plate having an integral and resilient 120 cloth-lifting portion, and a cutter and actuating mechanism therefor carried by said foot-plate.

4. A cloth cutting machine comprising a foot-plate having an independently-movable 125 cloth-lifting portion connected thereto by an integral and resilient connection, and a cutter and actuating mechanism therefor carried by said foot-plate.

5. A cloth-cutting machine comprising a 130 i foot-plate having an independently-movable cloth-lifting portion connected thereto by an integral and resilient connection, a cutter and actuating mechanism carried by said foot-plate, and antifriction devices on said foot-plate arranged to relieve the same from the Work-table.

6. A foot-plate for cloth-cutting machines comprising a carrier portion provided with anti riction devices and also having a clothlifting portion integrally and resiliently connected thereto.

7. A foot-plate for cloth-cutting machines com rising a carrier portion provided with anti riction devices, and an independentlymovable cloth-lifting portion connected to said carrier portion by an integral and resilient connection.

8. A foot-plate for cloth-cutting machines comprising a carrier portion, and an integral frame-like cloth-lifting portion resiliently connected to the rear part of said carrier portion.

9. A foot-plate for cloth cutting machines comprising a carrier portion, and a framelike cloth-lifting portion resiliently connected to the rear part of said carrier portion only.

10. A foot-plate for cloth cutting machines comprising a carrier portion, a frame-like cloth-lifting portion resiliently connected to the rear part of said carrier ortion onl and antifriction devices on sai carrier ortion arranged to relieve the same and t e rear part of said cloth-lifting portion from the work-table.

1 1 A foot-plate for cloth-cutting machines comprising a continuous surrounding framelike cloth-lifting portion, and a carrier portion comprising a forwardly-extending and independently movable tongue resiliently connected to the rear cross member only of said surrounding frame.

12. A foot-plate for cloth-cutting machines comprising a continuous surrounding framelike cloth-lifting portion, a carrier portion com rising a forwardly-extending and indepen ently-movable tongue resiliently connected to the rear cross member only of said surrounding frame, and antifriction devices on said carrier portion adapted to relieve the same and rear part of saidframe from the Work table.

13. A foot-plate for cloth-cutting machines comprising a continuous surrounding framelikecloth-lifting portion, and an independently-movable carrier portion comprislng a resilient tongue within said frame, said tongue being integrally connected to the rear cross member of said frame.

14. A foot-plate for cloth-cutting machines comprising an integral structure having a continuous surrounding frame-like cloth-lifting portion and a carrier portion comprising a resilient tongue extending forwardly from the rear cross member of said frame.

Signed at St. Louis, Missouri, this 26th day of December, 1907.

JOHN B. GUR

Witnesses: G. A. PENNINGTON, J. B. MEGOWN. 

